1 Answer
1

I notice that it already causes the "-N characters left" message to flash when you click the comment, but I think some simple style rules could call this out more, especially in conjunction with the flashing:

As soon as it reaches < 0 characters left, change text to white and background-color to #cc0000

Gray out (something like #cccccc) the text on the "Add Comment" button to indicate that nothing will happen when clicked.

(As it does now) flash the "characters left" message if "Add Comment" is clicked